DOA Estimation of Noncircular Signals Using Quaternions
2017 ◽
Vol 2017
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pp. 1-6
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Keyword(s):
The two-dimensional (2D) direction-of-arrival (DOA) estimation problem for noncircular signals using quaternions is considered in this paper. In the framework of quaternions, we reconstruct the conjugate augmented output vector which reduces the dimension of covariance matrix. Compared with existing methods, the proposed one has two main advantages. Firstly, the estimation accuracy is higher since quaternions have stronger orthogonality. Secondly, the dimension of covariance matrix is reduced by half which decreases the computational complexity. Simulation results are presented verifying the efficacy of the algorithm.
2019 ◽
Vol 2019
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pp. 1-10
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Keyword(s):
2018 ◽
Vol 2018
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pp. 1-9
2015 ◽
Vol 2015
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pp. 1-9
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2014 ◽
Vol 926-930
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pp. 1853-1856
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2012 ◽
Vol 490-495
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pp. 534-537
2015 ◽
Vol 23
(04)
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pp. 1540007
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2014 ◽
Vol 610
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pp. 339-344